HomePage
 




 


 

ISSN 2083-6473
ISSN 2083-6481 (electronic version)
 

 

 

Editor-in-Chief

Associate Editor
Tomasz Neumann
 

Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
www http://www.transnav.eu
e-mail transnav@am.gdynia.pl
Development of the Effective Underwater Speaker Sound Modulated by Audible Sound Frequency Range of Large Cetaceans for Avoidance with Ship Collision
1 Tokyo University of Marine Science and Technology, Tokyo, Japan
ABSTRACT: The underwater speaker (UWS) has been installed on high speed vessels; hydrofoils (HF) with low-noise during their cruises, to avoid sudden collisions with large cetaceans, while its performance has remained uncertain because of the problem in quality of the produced sound. Thus, we developed a sound source for the UWS by modulating the sound based on the audible range of major large cetaceans so as to increase its utilities. To investigate the audible sound frequency range of cetacean, we tried two procedures, (1) indirect-estimation from relationship between cetaceans audibility and vocalization, and (2) indirect-estimation from measurements on the cochlear basal membrane. We also synthesized the two new sound sources which we can potentially expect an avoidance with large cetaceans. Through several field experiments with deploy the new sounds we reached a tentative conclusion that the new sound was effective in terms of inducing the cetaceans' avoidance reaction and would be also expected to be applied to other low-noise vessels.
REFERENCES
Echteler, S.W., Fay, R.R & Popper, A.N. 1994. Structure of the mammalian cochlea. In: A.N. Popper.(eds), Comparative hearing: mammals :134-171.New York. Springer-Verlag. Press.
Francois, R.E. & Garrison, G. R. 1982. Sound absorption based on ocean measurements: Part I: Pure water and magnesium sulfate contributions. Journal of the Acoustical Society of America. 72(3): 896-907.
Frankel, A.S., Mobley, J.R. & Herman, L.M., 1995. Estimation of auditory response thresholds in humpback whales using biologically meaningful sounds, In Kastelein R.A., Thomas J.A., Nachtigall P.E. (eds), Sensory Systems of Aquatic Mammals:55-70.Woerden: De Spil Publishers.
Green, S & Marler, P. 1979. The analysis of animal communication. In: P. Marler & J.G. Vandenbergh. (eds), Social behavior and communication, vol 3. Handbook of behavioral neurobiology: 73-158. New York. Plenum Press.
Kagami, L. 2011. Fundamental research of collision avoidance between large cetaceans and super high speed vessels - Analysis for the occurrence of cetaceans on the sea routes and early detection system of cetaceans. Master thesis, Tokyo University of Marine Science and Technology. :1-105.
Kawamoto, T. 2003. Use of new adhesive film for the preparation of multi-purpose fresh-frozen sections from hard tissues, whole-animals, insects and plants. Arch. Histol. Cytol .66(2):123-143.
Ketten, D.R & Wartzok, D. 1990. Three-dimensional reconstructions of the dolphin ear. In: R. Kastelein.(eds), Sensory abilities of cetaceans. :81-105.New York: Plenum Press.
Maeda, H., Koido, T. & Takemura, A. 2000. Principal component analysis of song units produced by humpback whales (Megaptera novaeangliae) in the Ryukyu region of Japan. Aquatic Mammals. 26(3):202-211.
Nakashima, T., Kobayashi, N., Yamada, H., Katsumata, T., Yoshida, R., Okabe, H., Kawazu, I., Yanase, Y., Omine, M., Terada, M., Sugioka, H., Kyo, M. & Kato, H. (submitted to TransNav2015). Repellent effect of the new UWS sound against large cetacean Repellent effect of the new UWS sound against large cetacean.
Shakata, K., Odagawa, A., Yamada, H., Matsunaga, H., & Kato, H. 2008. Toward to avoiding ship strike of cetaceans with the high-speed HF(1)-Identifying expected cetacean species on the track lines of HF. 2008 Annual meeting of M.S.J. summary :135.
Tsuji, K., Kagami, L., Shakata, K. & Kato, H. 2014. Circumstantial Analysis of the Appearance of Whales on the Hydrofoils Route in the Japanese Coast. The Journal of Japan Institute of Navigation. 130(0):105-113.
Watkins, W.A. 1986. Whale reactions to human activities in Cape Cod waters. Marine mammal science. 2:251-262.
Yagi, T. 1991. Night navigation of the Jetfoil, report of the safety navigation of super high speed vessels. Passengerboat. 177:10-18.
Citation note:
Yamada H., Kobayashi N., Nakashima T., Kato H.: Development of the Effective Underwater Speaker Sound Modulated by Audible Sound Frequency Range of Large Cetaceans for Avoidance with Ship Collision. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 9, No. 2, doi:10.12716/1001.09.02.08, pp. 213-217, 2015

Other publications of authors:

H. Kato, H. Yamada, K. Shakata, A. Odagawa, L. Kagami, Y. Yonehara, M. Terada, K. Sakuma, H. Mori, I. Tanaka, H. Sugioka, M. Kyo
H. Yamada, L. Kagami, Y. Yonehara, H. Matsunaga, H. Kato, M. Terada, R. Takahashi, K. Okanoya, T. Kawamoto
T. Nakashima, N. Kobayashi, H. Yamada, T. Katsumata, R. Yoshida, H. Kato, H. Okabe, I. Kawazu, Y. Yanase, M. Omine, M. Terada, H. Sugioka, M. Kyo

File downloaded 461 times








Important: TransNav.eu cookie usage
The TransNav.eu website uses certain cookies. A cookie is a text-only string of information that the TransNav.EU website transfers to the cookie file of the browser on your computer. Cookies allow the TransNav.eu website to perform properly and remember your browsing history. Cookies also help a website to arrange content to match your preferred interests more quickly. Cookies alone cannot be used to identify you.
Akceptuj─Ö pliki cookies z tej strony